weston



(No Model.) 2 Sheets-Sheet 1.

E. WESTON ELEGTRO MAGNETIG MOTOR. No. 283,546. Patented Aug. 21, 1883.

(No Model.) 8 2 Sheets-Sheet; 2. E. WESTON.

ELEOTRO MAGNETIC MOTOR.

No. 283,546. Patented Aug. 21, 1883.

UNITED STA ES PATENT OFFI E.

ED\VARD \VESTON, OF NEIVARK, NE? JERSEY, ASSIGNOR TO THE ITED STATES ELECTRIC LIGHTING COMPANY, OF NEIV YORK, N. Y.

.ELECTRO-MAGNETIC MOTOR.

SPECIFICATION forming part of Letters Patent No. 283,546, dated August 21, 1883.

Application filed March 16, 188;. (No model.)

To all who/1o it may concern:

Be it known that I, EDWARD \VEsToN', a' subject of the Queen of Great Britain, and a resident of Newark, in the county of Essex and State ofNew Jersey, have invented certain new the'power of an electromagnetic motor directly for drivingor operating such tools by dispensing with the gears or belts, and for this purpose I fix the tool directly to the shaft of an electro-magnetic motor, the motor itself being so constructed that it may be combined and used with a bench or table similar to those now in use. I also mount or support the mo tor in such manner that its position with reference to the bench ortable may be readily shifted or adjusted. The tools which are fixed to the shaft may be of several kindssuch,for example, as are adapted for sawing, grooving, or cutting-and the motor may be run in any of-the ways known or used for the electrical transmission of power.

My invention is shown in the accompanying drawings as applied to or combined with an ordinary circular saw, Figure 1 being a side view, and Fig. 2 a plan view, of the apparatus, portions of the supporting-frame in each case being cut away to exhibit the construction of the working parts.

A is the supporting-frame, 13 the table or bench, and O a slot in the latter through which the saw works.

l cuts granted to me. On the shaft T is clamped or fixed, in the usual manner, a circular sawblade, S, in position to project through the slot (7.

The construction of the motor, it will be seen, is such as to specially adapt it for this purpose, the shape of the field-magnets being such as to permit the armatureshait being brought in. close proximity with the under side of the bench through which the saw works.

The cross-piece E is fixed to a shaft, K, that p is mounted in bearings in the rear of the frame A, the motor by this arrangement being free to swing bodily toward or from the bench. An arm, L, fixed to shaft K, carries an ad justable counterpoise, M, that balances the weight of the motor.

Provision is made for shifting or adjusting 'the position of the motor, that shown being a common expedient in instruments of this kind, and consisting of slotted plates O 0, a bar, I, with clamping-nuts or similar devices that fix the bar at any desired point in the slots, and arms R It, extending from the under pole-piece, 7 5 F,to the bar 1. Conductors from the bindingposts of the motor are brought to a switch, Y, in a convenient place on the frame or bench.

The construction described permits the ready and easy adj ustment of the saw with reference to the table or bench, the motor and its shaft being raised or lowered by means of the adjusting devices according to the thickness of the timber that is to be sawed.

Many advantages result from the construction and arrangement of the devices which I have described. The complicated gearing ordinarily used in conjunction with tools of this deseription is dispensed with, the power of the motor being applied directly,while the neceso sary adjustment is attained without difficulty or the employmentof other than the mostordinary forms of mechanism. IVhile the construction shown is the most practicable and simple, it is evident that the motor and saw 5 may be made adjustable with reference to the bench in other ways, it being within the scope of my invention to move the motor bodily toward or from the bench.

WVith regard to the motor it may be stated that though the form shown is believed to be the best adapted to thepurp ose from the special necessities of the case, it may be in some respects varied in mechanical construction and design.

Vithout, therefore, restricting myself to any special form of motor in combination with the other elements named, nor to the precise arrangement of parts composing said combination,

\V hat I claim as new, and desire to secure by Letters Patent, is

1.. The combination of an electromagnetic motor, a cutting or similar tool fixed directly to the shaft, a bench or table, and means for shifting or adjusting the position of the motor with reference to the bench, as set forth.

2. The combination with a bench or table, of an electromagnetic motor mounted or sup ported in a manner to be moved or adjusted toward or from said bench, and a cutting or similar tool fixed to the shaft of the motor and project ing through the bench, as set forth.

3. The combination, with a bench or table, of an electromagnetic motor mounted or supported in a manner to swing toward or from the said bench, and means for retaining the 2 motor in proper position for use, as set forth.

4. The combination, with a bench or table, of the magnets D D, cross-piece E, shaft 1i, the armature mounted between said magnets, the saw or cutting-tool fixed to the armatureyo shaft, and means for adjusting the position of the magnets with reference to the bench, as described.

In testimony whereof I have hereunto set my hand this 12th day of March, 1883.

15]) ART) \VEITOX.

\Vitnesses: V

HENRY A. BEOKMEYER, L. V. E. lxxns. 

